Mailgun “Check your inputs!” Error
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We ran into an issue with multiple sites that are using the plugin. They were on 2.0.9.
We were getting a WordPress critical error when users were submitting Gravity Forms that were configured to send notifications via the plugin and Mailgun.
We updated some select sites to 2.0.10 but would then get an error from Mailgun:
“The parameters passed to the API were invalid. Check your inputs!”We tried recopying the API key in but still get this message. If we switch the plugin to use default or SendGrid they would work.
Any thoughts on what could be causing this? Any logs we should be checking to communicate with Mailgun on? We’d like to keep these on Mailgun for now if possible.
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Definitely looks like you have two things going on. The Slack integration caused the fatal error (which it appears you have fixed). However, it doesn’t appear you’re passing data to Mailgun correctly which is the root cause for us.
2020/02/27 18:13:53 [error] 110915#110915: *341830 FastCGI sent in stderr: “PHP message: ERROR PostmanWpMail: Mailgun\Exception\HttpClientException code=400 message=The parameters passed to the API were invalid. Check your inputs!PHP message: PHP Fatal error: Uncaught Error: Call to undefined method PostmanOptions::getSlackToken() in /www/cosmomm_149/public/wp-content/plugins/post-smtp/Postman/Extensions/Core/Notifications/PostmanSlackNotify.php:11
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